{"id":"m39-2019-styczen-egzamin-zawodowy-pisemny/zad/20","paper_id":"m39-2019-styczen-egzamin-zawodowy-pisemny","number":"20","points":null,"ptype":"closed","subject":"m39","category":"egzamin-zawodowy","year":2019,"month":"styczen","level":null,"text":"Zadanie 20.\nMetanomierzem interferencyjnym można dokonać pomiaru stężenia CH4 oraz\nA. O2\nB.\nCO\nC.\nCO2\nD. NO2","answer":"C, D","answer_text":"C\n40\nD","solution":null,"image":"img/m39-2019-styczen-egzamin-zawodowy-pisemny/zad-20.webp","solution_image":null,"topics":null,"page_from":5,"source":"ocr","answer_source":"ocr","answer_text_source":"ocr","solution_source":null,"text_source":"ocr","source_label":"M39 · Egzamin zawodowy · styczeń 2019","subject_label":"m39","category_label":"Egzamin zawodowy","text_html":"<p>Zadanie 20.<br>Metanomierzem interferencyjnym można dokonać pomiaru stężenia CH4 oraz<br>A. O2<br>B.<br>CO<br>C.<br>CO2<br>D. NO2</p>","answer_text_html":"<p>C<br>40<br>D</p>","solutions":[]}